“Donald Trump talks about stop and frisk like he knows the facts,” de Blasio said in an interview with CNN. “He has had no experience with policing, no experience with public safety. “He should really be careful because if we reinstitute stop and frisk all over this country, you would see a lot more tension between police and community.”

An explosion rocked the Chelsea neighborhood of Manhattan on Saturday night, injuring at least 29 people, authorities said, adding that they are investigating the blast as a criminal act not immediately linked to any terror organization.

The Republicans in New York City are not the Trump crowd, or so it seemed. They didn’t even want to lynch Hillary Clinton, like the crowds at the Republican National Convention in Cleveland have been demanding all week.

The International Association of Machinists and Aerospace Workers trumpeted an agreement reached recently to represent New York Uber drivers, saying it “gives organized labor an opportunity to shape the new economy in a way that supports and values workers and their families.” But not everyone in the labor movement is cheering.

Neither Trump nor his audience batted an eye at the mistake — though that silence wasn’t as powerful as Trump’s was last fall, when he refused to support the James Zadroga Act, which permanently extended heath care benefits to 9/11 first responders.

Trump will not be as invulnerable should he ever have the responsibility to govern. He has little to lose as an outsider candidate, but any corruption in office would reveal him as the hypocrite he is.